Ltr a couple days ago told me about this party this friend invited her to, told me that she hasn't talked to her in a few months and shes not sure if she wants to go. I tell her to go since I have plans myself. Day of the party she goes for a couple hours then comes over to my place, I ask her how the party was and we talked a bit. Then I ask her how did you guys meet ? ( she is 4-5 years younger than my ltr so I thought it was weird that they were supposedly close before ) then she looks all weird and tells me that its her ex bfs little sister. (Her ex bf wasnt there, hes in another state). I ask her why she didn't mention that it was her ex bf little sister's party she was going to. She told me that she wasnt sure if i'd wanted to know this piece of information, because I never liked to hear about her past (bullshit). I told her that withholding information like this makes me feel like your youd be open to hiding more things in the future and being secretive. Now obviously this is a huge red flag, shes had ample opportunity to bring it up to me but she didn't, instead she chose to talk about her with me while leaving out the one detail that I felt was important. She apologized and left shortly after saying " I hope you dont think i'll be secretive about anything else" weve been no contact ever since.

I know shes definitely not talking with her ex. There could be a possibility of them talking about the ex though. She green flags everywhere else, very submissive.

Is this a soft next or hard next? Or check her phone and verify if she has any shady hidings and decide next course of action?